DNA Marker Index information for Chromosome: Y Marker: M126.1Names and Aliases for this DNA Marker: M126.1, M126, S27477.Chromosome Position in hg38 Human Genome assembly1: 19768377.Chromosome Position in hg19 assembly2: 21930263 .Ancestral marker allele value: AATA.Derived, alternative, or mutated marker allele value: del.